[Bug 1350012] Re: os-prober does not detect Windows 8.

[Vasya Pupkin]

Same issue here on ASUS Zenbook UX301LAA with SSD Raid. For some reason
os-prober ignores Windows Boot Manager EFI partition.  Looks like the
real problem is the EFI test. Here's a syslog entry after running os-
prober:

Jun  7 00:00:17 shadow-zenbook os-prober: debug: running /usr/lib/os-probes/mounted/05efi on mounted /dev/mapper/isw_dahhdhgec_ASUS_OS1
Jun  7 00:00:17 shadow-zenbook 05efi: debug: /dev/mapper/isw_dahhdhgec_ASUS_OS1 is a FAT32 partition
Jun  7 00:00:17 shadow-zenbook 05efi: debug: /dev/mapper/isw_dahhdhgec_ASUS_OS1 is virtual device: exiting

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https://bugs.launchpad.net/bugs/1350012

Title:
  os-prober does not detect Windows 8.

Status in os-prober package in Ubuntu:
  Confirmed

Bug description:
  Fresh installation of Ubuntu alongside with pre-existing Windows8 on
  ASUS U500VZ notebook, SSD RAID.  Can't achieve boot to Windows from
  GRUB while UEFI boots both systems no problems.

  $ sudo os-prober
  /dev/mapper/isw_bhiiigeffb_RAID0SYS7:Ubuntu 14.04.1 LTS (14.04):Ubuntu:linux

  does not see Windows.

  boot-repair sees Windows, but asks to disable Security Boot feature
  that doesn't seem to be possible on this EFI implementation.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: os-prober 1.63ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Jul 29 21:49:48 2014
  Dependencies:
   gcc-4.9-base 4.9-20140406-0ubuntu1
   libc6 2.19-0ubuntu6
   libgcc1 1:4.9-20140406-0ubuntu1
   multiarch-support 2.19-0ubuntu6
  InstallationDate: Installed on 2014-07-29 (0 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  SourcePackage: os-prober
  UpgradeStatus: No upgrade log present (probably fresh install)

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